CHUCK
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United States of America Patent
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N/A
Issued Date -
Aug 9, 2012
app pub date -
Feb 2, 2012
filing date -
Feb 3, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A chuck has a body rotatable about an axis and formed centered on this axis with a passage. Pivots angularly equispaced about the axis in the chuck body define respective pivot axes. An actuating sleeve axially shiftable in the passage carries a piston disk having a frustoconical outer surface centered on the chuck axis and axially shiftable in the body by the sleeve. Respective shafts journaled in the pivots and rotatable therein about the respective pivot axes each have an outer surface portion that is frustoconical and centered on the respective pivot axis. Respective levers fitted to the frustoconical surface portions of the shafts each have a front arm projecting axially forwardly from the shaft out of the chuck body and adapted to carry a tool-gripping jaw and a rear arm projecting axially rearwardly from the shaft and engageable by the outer surface of the disk.
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